Lubricator.



PATBNTED FEB. 13, 1906.

C. C. DODGE.

LUBRIGATOR.

APPLIOATION FILED Nov. 29

il l! witnesses dwz? I To a/ZZ whom it may concern,.-

UNTTED STATES vPATENT OEEIOE.

CHARLES o. DODGE, OF BLOOMEIELD, NEW JERSEY, ASSIGNOR To THE rDODGE-LUBRIOATOR COMPANY, OE BOSTON, MASSACHUSETTS, A OOR- PORATION O FMASSACHUSETTS.

LUBRICATOR.

Specification of Letters Patent.

Patented Feb. 13, 1906.

Be it known that I, CHARLES C. DODGE, a citizen of the United. States,residing at Bloomlield,y in the county of Essex andState of New Jersey,have invented certain new and useful Improvements in Lubricators; and Ido hereby declare the followin to be a full, clear, and exactdescription of t e same, reference being had to the accompanyingdrawings, forming a part of this specification, and to the letters ofreference marked thereon.

This invention relates to mechanical forcefeed lubricators, andisdesigned more especially for use in connection with engines-su ch.

as asolene, automobile, or marine enginesor or use in connectionwithWorkin mechanical structures wherein a number or bearings or Workingsurfaces are to be suppliedl with lubricating material from a singlesource.

T he objects of the invention are to provide 1a simple, cheap, andefficient. self-contained structure adapted to feed to the Severalworking surfaces a quantity of lubricant'exantly proportioned toitsneeds, to which ends the Iinvention consists, primarily, in a lubricatorembodying a reservoir for the lubricant, a rotary pump-carrier having adischarge-orifice adapted to aline or register successively with i ductsleading to the several bearings, a fixed member for controlling thethrow of the pump and quantity of lubricant discharged there'- by, and ameans for rotating the pump-carrier driven from the engine or othersource of a relation power bearin faces to be lu ricated. i

iThe mventlon further conslsts 1n certain to the Working surnojveldetails of construction and combina' tions and arrangementslof parts,all as will be now described, and pointed out particularly in theappended claims.

Referring to the accom anying drawings, Figure 1 is a -vertical section,partly broken away and partly in elevation, of a lubricator embodyingthe present improvements. Fi 2 is atop plan view of the base-section witportions broken away to show underlying parts. Fig. 3 is a sideelevation of the pumpcarrier, the up er end of the stem being brokenaway. ig. 4 is a vertical detail section showing the seat for thepump-carrier and a small section of the pump-earner itself. Fig. 5' is adetailsectional elevation of the seat for the pump-carrier, showing twoof the yterminal openings of the discharge-ducts for vthe lubricant. i

Similar letters of reference in the several igures indicate like parts.

The letter A indicates a reservoir for lubricant, which it is obviousmay be ofany desired form or material, but ispreferably a cylindricalreservoir formed of brass or glass tubing, having a tight-fitting to Awith a lling-oriice A2 therein, and, if of brass, a long verticalsight-o ening A3, rovided with a trans arent cel uloid or g ass WindowA4; The libtt'om ofthereservoiris formed by a base-fitting B, whichserves, preferably, as the means for supporting the reservoir andconsti-- tutes the seat and support for all of the working parts of thelubricator and the terminal connections for the several ducts throughwhich the lubricant 'is carried to the Working surfaces or bearings tobe lubricated. The yfittin s or nipples forming the terminals of saiducts are indicated at B. On its inner side said base B is provided ywitha conical (iov annular seat C, .preferably arranged at an v angle offorty-five degrees for the reception of the correspondingly-shapedworking face of the pumpcarrier D and a central bearing f or a bottomstern or journal D on the pumpcarrier. The up er ortion of the,

lum carrier is provide' Wit a stem E, refiirab y detachably mounted"thereon an ,held by screws e, as shown in Fig. 3, said screws e en-rtering the ends of standards-d, projecting upward y from` the top of thepump carrier.

The stem E is uided or takes a bearing at 'the center of a spi erF, thearms of which extend down and yare attached to the base by screws f,said stem and carrier being held down by means of a spring G, preferablysurrounding the stem E and bearing on the base-flange E oiI the stemthrough a ball-bearing G', as shown clearly in Fig. 1.

The pum -carrier Dis provided with a pump barre or Iclylinder for thereception of a pump-plunger preferably arranged to reciprocatehorizontally in :the carrier, and in order to operate said plunger it isconnected, through a head H', with a connection-rod or operating-stemHworking in bearings h in the carrier, 'so as to travel parallel withthe plunger. Reciprocatory motion of the pluni ger and its operating-rodin one directlon is effected by a Spring I, preferably surrounding IOOthe stem H2 between the bearings hand at one end engaging a cup orcollarfi on therod.

i Motion inthe opposite direction or a ainsty the tension of the springis eiected by t e engagement'ofthe end of the stem I-I2 with one or theother of the series of projections K ,on a controlling-ring K', securedinthe base of the lubricator, preferably by the screws Whichalso .serveto secure the spider E 1n lace. eads `from the end ofthe cylinderor'barr'el I put through Athe Working face of the carrier 1n position toregister at certain times with the ducts M', forming the terminals ofthe before-mentioned Iducts for conveying the lubricantto the Workingsurfaces to be lubri- Icated. The ducts M are in projections,

' preferably having their ends faced to corretents o'f the pump-cylinderWill bedischarged I into the registerlngV duct and vvill be forcedthence to the bearing.` y f The spring I before referred to preferably.constitutes the meansy for advancing the pump-plunger with a quickmovement, and they kprojections K on the controlling-ring serve toretract thesaid plunger. SaidprojectionsK are preferably so formedthatduring the travel of the operating-rod II2 over them the said rod andpump-plungerwill not v be moved during the time that duct M is travelingacross rthe walls forming the faces surrounding the ducts M; but therearward movement` vv'ill all take place during the time -the yduct M is'traveling between adjacent lducts M, at which times the duct M is vopento the reservoir, and consequently lubricant W`ill then bev drawn intothe pump. The pump-stem H2 rides off the projections K when the ductsareA in register With 'each other, and itis obvious that the quantity oflubricant to be discharged by the pump for any particular bearing may beaccuratey regulatedby the height of the ro'jections and the number ofducts which may be supplied from one lubricator is only limited by thespace in the periphery of the circle traversed by 'thepump-carrier. Asshown, the

device 1s adapted to supply lubricant to six y bearings, although thisnumber may be increased or diminished, as found desirable; but

in practice lubricators ma be 'made with a maximum number of out ets,any or al'l of which may be utilized, as desired. The controlling-ring Kbeing removable may be considered the only tions.

A channel M in the pump-carrierpart necessarily varied to adapt thelubricator to any special condi-I To impart rota motionto the ump-car-'rier,' it is preferab y provided Wit a Wormgear O, with which adrive-Worm O meshes, said drive-Worm being mounted ona driveshaft O2,passing-out of the base throu h a stuiiing-box O3 and deriving itsmotion om any suitable source-.sucln for instance, as

the half-time shaft of a gas-engine; j

Y Where the lubricator is used in connection with 'gas-engines, it isobvious that b imparting a rotation to the drive-shaft O2 1n acycordance With the'half-tiine shaft of the en gine thepump may bearranged to discharge oilto thecylinder or cylinders when no pressureexists in the cylinder or cylinders, and

at all other times the ducts M will be closed `by the Working face ofthe pump-carrier, thereby plreventing back pressure in the reservoir. heseating-spring, as shown,- has a compression of ten or fifteen poundsand is Vsufficient to maintain the 'pump-carrier on its seat against aback pressure through one of the ducts from a cylinder at the instant ofeX- losion, and hence, if desired, lubricant may e forced into thecylinder even when pressure exists therein.

The arrangement described, it Will be noted,

arranged to work, as has heretofore been proposed,` with 'a check-valvefor controlling the admission of lubricant to the pump-cylinder.

It will be noted that the entire Working mechanism lof the lubricator isdirectly` mounted on the base B and that Without disturbing the Workingrelationof they parts All of said Working parts are contained Within thelubricator, there being no communication With the exterior save throughthestuH- ing-box O3 of the operating-shaft, and conseqllirentl alldanger of lubricant Working out t ougjoints in the lubricator iseliminated. Furthermore, the arrangement is such that by raising thepump-carrier from its seat the lubricator Will act as an ordinarygravity-feed lubricator, inasmuch as the unseating of the pump-carrieropens the ducts for the direct ent of lubricant, and conse uently it ispossible in an emergency to ma e use of the device Without theforce-feed feature;

vHaving thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is Y 1, In a lubricator such as described the'combination with a reservoir for the lubrithe lubricant and seated oversaid openings for closing the same," a pum the carrier, there being aduct from said) pump adapted to register successively Witlithe saidopenings andv means for rotating the carrier and operating the pump;substantially as denl scribed.

3. In a lubricator such as described, the.

combination With a reservoir for the lubricant havingv openings, o -arotary carrier A,located in the reservoirin position to be submerged inthe lubricant and seated over said openings to close the saine, a ump insaid carrier, there, being a duct leading tothe ump and norm-ally opento the reservoir but adapted. to register Wit-h the openings insuccession and means for rotating the carrier and o erating the pump;substantially as described). i. l

4. In a force-feedlubricator'the vcombina-- tion' with the'reservoirhaving `a seat therein formed by projections constituting the tei'- minals of discharge-ducts, of a rotary pumpcarrier mounted on said seat toclose the openings, a pump on lthe carrier, there being a pump-ductnormally open to the reservoir ut adapted to be brought into re istrywith the openings by the rotation of t e cai'iier, means for rotatingthe carrier and operating the pump; substantially as described.

5. In a Jforce-feed lubricator the combination with the reservoir havingthe annularconical seat therein and openings in said seat constitutingthe terminals of discharge-ducts, of a rotary pump-carrier having aconical working face having its bearing in said seat, a pump in saidcarrier, there being a pumpduct leading out through the working face ofthe carrier, means for rotating the carrier and for operating the pumpsubstantially as described.

6. In a force-feed lubricator, the combination with the reservoir havingthe annular conical seat `'therein with projections constituting theerminals of discharge-ducts,- of a rotary pu p-cariier having a conicalworking face having its bearing in said seat, a pump in said carrier,there being a pumpduct normally open to the reservoir between theprojections but adapted to be brought into registry with the openings bythe rotation of the carrier, means for rotating the carrier andoperating the pump; substantially as described.

7. In a force-feed lubricator the combination with the base having thedischarge-duct terminals therein, the rotary pump-carrier and pump andthe drive-gear for the carrier all journaledY in the base and thepro'ections for operating the pump mounted on t e base,

a plurality of 'discharge-duct ed to register with t of the removablecasing carried by the base and constituting the reservoir for the=lubricant; substantially as described.` y

8. A force-feed lubricator embodying a separable base and casingconstituting the reservoir, of a pump .mechanism located Within thereservoir and supported together with its operating mechanism entirelyon'the base and independently ofthe casing; vvheieby the casing and basemay be se arated' Without disturbing'l the pump mec anism;`substantially as described;l i' 4 9. In a force-feed lubricator such asd escribed, the combination with' the reservoir, having discharge-ducts,reciprocatory pump, operating devices therefor and rotaryoarrier onwhich the pump and operating devices are mounted, controlling thecommunication between the pump and discharge-ducts, ofl

means for rotating the carrier, a fixed ring having projections thereon-ior retracting the 'pump-plunger and a spring for advancing thepump-plunger; substantially as described.

10. In a force-feed lubricator such as described, the combination withthe reservoir and rotary pump-carrier mounted in the reserv voir, of ahorizontally-arranged pump in said carrier, a horizontal operating-stemfor the pump-plunger and fixed projections in-the4 reservoir with whichsaid stem coperates to control the said plunger; substantially asdescribed. 4

1 1. In afor'ce-feed lubricator, the combinaltion with the reservoirhaving a base, With an apertured seat in said base and a rotary carriertaking its bearing in said seat, ofa pump in the carrier having adischarge-duct ada ted to register With said apertures, aispi er IOOhaving arms secured to the base, a spring interposed between the spiderand carrier and means for rotating the carrier and operating the pump;substantially as described.'

12. In a force-feed lubricator, the combination with the reservoirhaving a base with an apertured seat in said base and a rotary carriertaking its bearing in said seat, of a pump in the carrier, a spring foradvancing -the plunger of ythe pump, a controlling-ring havl ingprojections for retracting the plunger of the pump and removably securedin the base, a spring for holdin the carrier down and a discharge-ductfor t e pump adapted to register with the apertures inthe seat;substantially as described.

13. In a force-feedlubricator the combination with the reservoir havinga base provided with an annular conical seat having discharge-aperturestherein, of a rotary carrier having a central .bearin and conicalworking face fitting the conica seat, a pump in said carrier havin adischarge-duct adaptt:he apertures in the seat, fixed annularcontrolling-ring having proj ectiois, a spring-pressed pump-plunger stemcooperating with said projections and a Worm and gear for rotating thecarrier; substantially as described.

14,. A force-feed lubricator having an annular seat projecting on theinner side of its base, with discharge-apertures in said seat, al

rotary carrier taking its bearing on said seat and center lbearings forsaid carrier located entirely within the reservoir, gearing for rotatingthe carrier also located within the reservoir, 'a reciprocatory pump inthe carrier, there being a discharge-duct for the pump adapted toregister withthe openings 1n the seat, a sprin for advancing thepump-pluner and fixe projections wlthin the reservoir or retracting thepump-plum er against the tension of its sprin the num er of saidprojections correspon ing to the number of discharge-openings in theseatgsubstantially as described. j

15. In a force-feed lubricator, the combination with a reservoir, havinga plurality of separated projections constituting the termina s ofdischarge-ducts, of a rotary pumpcarrier bearing against saidprojections, a pump in said carrier, there being a pumpduct normally oen to the reservoir between said projections ut adapted to re istersuccessively with said terminals as t; e carrier rotates, andinstrumentalities 'for rotating the carrier and operating the pump.

16. In a force-feed lubricator, the combination with a reservoir, havinga plurality of j. se arated projections constituting the termisaidcarrier and na s of dischar e-ducts and arranged substantially ina-clrcle, of a rotary carrier seated against said projections, a pumpcarried by said carrier, and having a duct adapted to` registeralternately and successively with the spacesl between said projectionsand said ter-HL minals, a pump communicating with said -series ofopenings aforesaid, means for rotatl slanci" in vthe carrier, apump-plunger in said bar-il re and-means 'for reciprocating the same, a.spring 'forholding the carrier down to its-seatm the reservoir and afixed part for main-) spring; substan.-

taining the tension of the tially as described.

18. In a lubricator such as described, the.

'combination with the reservoir having a plu- .l

rality of discharge-ductopenings arranged in i a circular series, of. arotary pump-,carrier located inthe reservoir in position to be sub- 6 5merged in the lubricant and having a duct adapted Ito register with thefirst-mentioned openings, a central bearin at the lower end of thecarrier and a spring or holding the carrier down to its seat;substantially as de- 7o scribed.

19. In a lubricator such as described, the combination with thereservoir, a rotary pump-carrier having a central journal, fixedsupports for the journal located respectively above and below thecarrier, projections in the reservoir having discharge-ductopeningstherein, a pump located in the cari-1er and having an inlet-outletopening adapted to register successivelywith the said discharge- 8oopenin s, means'for rotating the-carrier and means or operating thepump; substantially Y as described.

20. Ina lubricator such as described, a reservoir, a rotary carriermounted therein on central su porting means heid by-ixed parts above anAbelow thecarrier, there being a circular series of discharge-ductopenings in i the bottom of thereservoir, .a pump in the carrier havingan inlet-outlet opening adapt- 9o ed to register successively with thedischargeduct openings, means for rotating the ycarrier land means foroperating the pumps; substantially as described.

21. In a lubricator such as described, the

.combination with a reservoir for the lubricant having a plurality ofdischarge-ducts, a pump-carrier located in the reservoir in position tobe submerged in the lubricant and having `a duct adapted to communicatesucioo cessively with the Erst-mentioned ducts, a

horizontally-arranged pump in the carrier and horizontally-projectingcam-surfaces for operating the pum .(IHARLES C. DODGE. Witnesses:

RoscoE R. JOHNSON, JOHN S. JARvIsy

